青藏高原隆升的潮汐—均衡模式
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摘要
潮汐和厄尔尼诺事件使东西太平洋海面高度分别升降 6 0cm ,水均衡作用使洋壳反向升降2 0cm。由此形成东西太平洋地壳跷跷板运动。这是地震火山群发事件与厄尔尼诺事件一一对应的原因。发生在印度洋的同样过程是青藏高原隆升的原因。剥蚀沉积也会产生陆海地壳的跷跷板运动。计算表明 ,5 0年的剥蚀沉积作用施加在陆海地壳两端的力矩为M =4 .36× 10 14 N·m ;相当于在陆海地壳两端施加的反向力 p =4 .36× 10 8N。这两种跷跷板运动相互加强 ,是青藏高原隆升的基本动力。
Tides and El Nino events make the oceanic water in East Pacific Ocean and West Pacific Ocean going up and down 60 cm oppositely, which makes oceanic crust fall or rise 20 cm. It is the reason why El Nino events are interrelated with the earthquakes and volcanoes. This phenomenon is just like "seesaw". The process occurs not only in Pacific Ocean, but also in Indian Ocean. This may be one of the reasons for the uplift of Qinghai--Tibet Plateau. The denudation and sediment also make the crust move like seesaw. According to the calculation, the moment (M) brought to bear on the two sides of continental and oceanic crust in fifty years is about 4.36× 10 14 N·m.
Tides and El Nino events make the oceanic water in East Pacific Ocean and West Pacific Ocean going up and down 60 cm oppositely, which makes oceanic crust fall or rise 20 cm. It is the reason why El Nino events are interrelated with the earthquakes and volcanoes. This phenomenon is just like "seesaw". The process occurs not only in Pacific Ocean, but also in Indian Ocean. This may be one of the reasons for the uplift of Qinghai--Tibet Plateau. The denudation and sediment also make the crust move like seesaw. According to the calculation, the moment (M) brought to bear on the two sides of continental and oceanic crust in fifty years is about 4.36× 10 14 N·m.
引文
1 SharmaPV ,1983.地质学研究中的地球物理方法.王恕铭等译.北京:地质出版社,94,97
2 杨学祥,1992.地壳均衡与海面变化.地球科学进展,7(5):2230
3 杨学祥,1988.地壳均衡与水平运动.世界地质,7(1):4338
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5 杨学祥,陈殿友,1998.地球差异旋转动力学.长春:吉林大学出版社,12,183
6 任金卫,2002.利用GPS观测结果反演中国大陆及邻区现代构造变形运动.地球物理学报,45(增刊):123135
7 HamblinWK ,1980.地球动力系统.殷维翰等译.北京:地质出版社,90108
8 李叔达,1987.动力地质学原理.北京:地质出版社,166169,340
9 池顺良,骆鸣津,2002.海陆的起源.北京:地震出版社,35
10 刘本培,蔡运龙,2000.地球科学导论.北京:高等教育出版社,202203
11 杨学祥,2003.大洋地壳的跷跷板现象.科学技术与工程,3(1):2829
12 杨学祥,2002.2001年发生厄尔尼诺事件的天文条件.地球物理学报,45(增刊):5661
13 杨学祥,陈震,乔淇源,2002.2002年厄尔尼诺事件的天文条件.西北地震学报,24(2):190192
14 杨学祥,陈震,陈殿友,乔淇源,2003.厄尔尼诺事件与强潮汐的对应关系.吉林大学学报(地球科学版),33(1):8791
15 WalkerDA ,1995.MoreevidenceindicateslinkbetweenElNinosandseismicity.Eos.,76(4):33,34,36
16 杨学祥,2002.厄尔尼诺现象的构造基础与激发因素.西北地震学报,24(4):367370
17 YangXX ,ChenZ ,ChenDY ,QiaoQY ,2003.Tideseffectglobalclimaticchanges.J .Geosci.Res.NEAsia,6(1):8288
18 周秀骥,陆龙骅,卞林根等,1996.南极与全球气候环境相互作用和影响的研究.北京:气象出版社,15,4350,7485,132139,370392
19 任振球,1990.全球变化.北京:科学出版社,60,88
20 杨学祥,2003.厄尔尼诺事件预测.科学技术与工程,3(2):155
2 杨学祥,1992.地壳均衡与海面变化.地球科学进展,7(5):2230
3 杨学祥,1988.地壳均衡与水平运动.世界地质,7(1):4338
4 杨学祥,1994.地壳形变与海平面变化.地壳形变与地震,14(4):2937
5 杨学祥,陈殿友,1998.地球差异旋转动力学.长春:吉林大学出版社,12,183
6 任金卫,2002.利用GPS观测结果反演中国大陆及邻区现代构造变形运动.地球物理学报,45(增刊):123135
7 HamblinWK ,1980.地球动力系统.殷维翰等译.北京:地质出版社,90108
8 李叔达,1987.动力地质学原理.北京:地质出版社,166169,340
9 池顺良,骆鸣津,2002.海陆的起源.北京:地震出版社,35
10 刘本培,蔡运龙,2000.地球科学导论.北京:高等教育出版社,202203
11 杨学祥,2003.大洋地壳的跷跷板现象.科学技术与工程,3(1):2829
12 杨学祥,2002.2001年发生厄尔尼诺事件的天文条件.地球物理学报,45(增刊):5661
13 杨学祥,陈震,乔淇源,2002.2002年厄尔尼诺事件的天文条件.西北地震学报,24(2):190192
14 杨学祥,陈震,陈殿友,乔淇源,2003.厄尔尼诺事件与强潮汐的对应关系.吉林大学学报(地球科学版),33(1):8791
15 WalkerDA ,1995.MoreevidenceindicateslinkbetweenElNinosandseismicity.Eos.,76(4):33,34,36
16 杨学祥,2002.厄尔尼诺现象的构造基础与激发因素.西北地震学报,24(4):367370
17 YangXX ,ChenZ ,ChenDY ,QiaoQY ,2003.Tideseffectglobalclimaticchanges.J .Geosci.Res.NEAsia,6(1):8288
18 周秀骥,陆龙骅,卞林根等,1996.南极与全球气候环境相互作用和影响的研究.北京:气象出版社,15,4350,7485,132139,370392
19 任振球,1990.全球变化.北京:科学出版社,60,88
20 杨学祥,2003.厄尔尼诺事件预测.科学技术与工程,3(2):155
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